Auger machine



Sept. 14 1926;

R. H. M ELROY ET AL AUGER MACHINE INVENTORQ 6 lfilVGf/VKHMP JOSEPH D- C'175 A TTORNE VS II I f l l I ALBERT HWl-lw Sept. 14,1926. v 1,599,663

R. H. MCELROY ET AL AUGER MACHINE Filed July 6, 1925 11 sheets-sheet s ATTORNEYS Sept. 14 1926.

R. H. M ELROY ET AL AUGER MACHINE Filed July 6, 1 2 11 Sheets-Sheet 4 Wo w T5 N6. EN n i 6 Jaw-W1 1). 075 R0) H. MQELEOY- Sept. 14 1926.

. R. H. MCELROY ET AL AUGER MACHINE Filed July 6, 1925 11 Sheets-Sheet 5R. H. McELROY ET AL AUGER MACH]: NE

Filed July 6, 1925 ll Sheets-Sheet 6 JOSf'P/l D. C 175 A TTORNE V5.

' 20) H- MSELEOK @wzm 11 sheets sheec 9 R. H. MCELROY ET A1.-

AbGER MACHINE FiledJuly 6, 1925 Sept 14 1926.

Sept. 14 1926.

R. H. M ELROY ET AL AUGER MACHINE Filed July Sept. 14 1926.

R. H. 'MCELROY ET AL AUGER MAHINE ll Sheets-Sheet 11 Filed July 6. 1925mm DE ROY H. HEEL/BOY.

ATTORNEY Patented Sept. 14, 1926. 1.-

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ROY H. MCELROY, ALBERT G. LANGEIIKAMP, AND Zlfl EPf-li 1D. CITE, OFDAYTON, OHIO,

ASSEGNOBS TO INTERNATIONAL CLAY llf-YAGEETIQ'ERY COMPANY, OF DAYTON,OHIO, A

CGRPORATION OF OHIO.

AUGER MACHINE.

Application filed July 6, 1925.

Our invention relates to-auger machines.

It is the object of our invention to provide an auger machine which issusceptible of being divided into several parts for shipment but which,when. assembled has all. the effect of a machine having a base made froma solid casting.

It is a further object of our invention to provide a combined augermachine and pug mill mounted upon such an integral base with a lowcenter of gravity providing a rigid substructure.

It is an additional object of our invention to provide a unitary supportfor the driving pulley and its shaft for the interconnecting drivingmechanism for the thrust bearing, the bearings for the pug mill shaftand the auger shaft.

It is a further object to provide a pug mill in which the pug millblades are adjustable.

It is a further object to provide an auger singly or in this combinationin which the auger blades are adjustable.

It is an additional object to provide-means of preventing a stagnationof the material and a stoppage of it at the point of departure of thematerial from the pug mill to the auger.

It is a further object to provide means of access to the auger chamberby which the auger and liner may move without disturbing the remainderof the mechanism.

It is an additional object to provide in this combination a detachableliner.

It is an object to provide a combined pug, mill and auger on a singleshaft operated from a single source of power as a unitary mechanism.

Referring to the (:lrawings:

Figure 1 is a plan view of the entire machine;

Figure 2 is a. side elevation of the entire machine;

Figure 3 is an end elevation from the driving end;

Figure Figure 1; a

Figure 5 is an end elevation from the auger end of the machine;

Figure 6 is an inside end elevation of the auger casing;

Figure 7-is a detail view in section of the aperture for receivinglubricant which passes 4c is a section on the line H of Serial No.41,799.

from the spider to the bearing supporting the auger shaft; 7

Figure 8 is a detail plan view of the unit of the casting carrying thepower driving mechanism;

Figure 9 is a section on the line 9-9 of Figure 8;

Figure 10 is a section on the line 10-10 of Figure 8;

Figure 11 is a side elevationin detail of this end of the castingpartially in section on the line 11-1l of Figure 8; v

Figure 12 is a section on the line 1212 of Figure 8;

Figure 13 is an inside end elevation of the structure shown in Figure 8;g

Figure 14 is an end elevation of the out side end of the castingpartially in section on the line ll-1 of Figure 8;

Figure 15 is a plan view of the supporting auger casting;

Figure 16 is an enlarged detail end elevation of one of the adjustablepug mill knives; a

Figure 17 is a side elevation thereof; Figure 18 is a detail of thetapered key which holds the knife in position;

Figure 19 is an enlargedelevation 0f the spider and supporting bearingin the auger shaft;

Figure 20 is a section on the line 20-20 of Figure 19;

Figure 21 is a section on the line 21-21 of Figure 19;

Figure 22 is an enlarged section of the intermediate casting or base forthe pug mill;

Figure 23 is an end elevation thereof; and

Figure 24 is a section through the auger casing and liners, face plate,extension, and hinged ring. The view also shows the extra large knivesor impellers on the shaft adjacent the auger in the arrangement of thesupporting spider and the anger with relation to the detachable liners,both primary and secondary;

Figure 25 is a section on the line 25-25 of Figure 26, of the extrusionend of the machine; and

Figure 26 is a detail elevation of the extrusion end of the machine.

Referring to the drawings in detail it will he observed that theapparatus constituting our invention consists of. three major groups ofmechanism each mounted upon its own integral base. The first group ofmechanism is that which is concerned with the driving of the pug milland the auger; the second, is that embodying the pug mill, and the thirdis that embodying the auger. The three units can therefore be shippedseparately and then assembled by means of locating dowel pins and boltswhich pass through two or more of the base castings to tie the entirestructure together as a unit. This permits of economical shipping whileat the same time securing the advantages of an integral base structurewhich must always be assembled in the same way.

Referring to the power end of the device, it will be noted that the baseupon which the mechanism is mounted consists of a single integralcasting having side walls 1 which are provided with flanges 2 and boltreceiving sleeves 3. On the outside end of the base casting having sidewalls 1 and a platform t is an upwardly projecting end casting 5 havinga bearing receiving portion 6 for receiving the outer end ofthe shaft 7of the pulley 8. To this pulley is communicated power by anydesired'means. This shaft 7 rests at its other end upon a pair ofbearing members 9 and 10 in the upwardly projecting casting block 11.These bearings supports 9 and 10 are separated to permit of the locationof the geared housing 12 in which are located conventional gears or agear and chain of the usual type. This housing is provided with a handle13 so that it may be removed for inspection, adjustment and lubricationof the mechanism therein.

The mechanism in the housing 12 is connected to the main shaft 14 whichis provided with a bearing support 15 on the base casting 16. It is alsoprovided with a thrustbearing support 17. The actuating gearing liesbetween these bearing supports. There is mounted on one end of thecasting 16 a housing 1.8 for a ball bearing thrust for the main shaftlt. This main shaft becomes the pug mill shaft 19 when in the pug millcasing 20. This shaft is provided with a plurality of apertures 21spaced from one another and located in rows along the axis of the shaft.Each row is substantially 90 degrees from the neXt adjacent row so thatthe pug mill blades 22 are at right angles to one another. These bladesjust clear the pug mill tub the tub having a circular bottom andupwardly extending sides with an open mouth 28 to receive the material,to be pugged. The sidewalls of the tub are held together intermediatetheir length by a transverse reenforcing bolt 24. The ends of the tubare mounted by bolts 25 in a U- shaped receiving end plate 26 which isbolted on the first mentioned operating mecha nism castingas at 27 thusserving to further tie the unittogether. The other end of the tub ismounted in a similar end casting 28 carried on the end of and as a artof the auger housing 29 which is mounted upon a base 30. On the righthand end of the pug mill is mounted the auger 31 in the housing 29. Thebolts 32 ant which pass along either side of the pug mill tub and areconnected in the operating mechanism casting and the auger casting tiethe entire structure together. Within the base 34 of the pug mill areinteriorily disposed bolts 3! and 36 which still further tie the severalparts of the mechanism together. It will be noted in Figure 1particularly in the section that spacing sleeves 37 are provided on thebolts 33 and 32 the ends of which abut against the operating mechanismcasting and the auger casting to properly space the several parts fromone another. This base casting of the pug mill has a semi-chem lar top38 for receiving the semi-circular bottom of the pug mill tub. The endsof the base 34 are provided with apertures 39 for the reception of boltsand The interior of the base 3% is provided with spaced strengtheningribs 4-0.

The auger housing 29 is mounted on the base'SO and has an open inner endfor receiving the auger 31 and an outer end closed by the face plate 411which carries the swinging gate 42 having the hinged arms 13 fittingwith the hinged arms t ll of the plate on the hinged bolt l5. This gateis held by the bolt 46 in the jaws 47. In the gate is mounted the die48. An extension 4-2 may be provided between the plate and the hingedgate. Through the die openings 49 is ertrudedthe plastic material workedupon by the pug mill and the auger. The auger shaft is supported, aswill be seen in detail in Figure 10, in a bearing ring 50 which in turnis supported by a plurality of hollow arms 51 having shoes on the outerend thereof fitting within the auger casing. These arms and shoes areprovided with lubricating apertures or pipes 53 which pass from thelubrication open ngs 76 shown in detail in Figure 7 and in Figure 19, tothe bearing ring 50 so that lubricant can lubricate the aue'er shaft.The arms are thin in the direction of movement of the material as willbe seen in Figures 19 and 21, so that it is possible for the material topass by the arms with the minimum of resistance. its will be seen inFigure 21, the arms are lozenge shape having sharp edges to facilitatethe passage of material by the arms. Either end of the bearing 50 whieisa cylindrical housing, is closed by a plate 55 to keep out foreignmaterial and to keep in the lubricant. Grease cups 56 feed lubricantfrom the outside of the auger housing29through the arms to the bearing.This form of spider support for the auger end of the machine solves theproblem of adequately providing and supporting a lubricated bearing inthe passage of the plastic material..

It will be noted that the bolts and 36 pass through the base in thisauger casting and are held in position by nuts on the outer end thereof.The other end of the bolts are located in the actuating mechanismcasting base as illustrated. i

The major tie bolts 32 and 33 are mounted in the eyes 57 of the augercasing which are located on either side of the casing on the outside.A-strengthening rib 58 is located beneath and on the outside of thecylindrical casing which houses the auger. The auger casing is enlargedas at 59 to receive the bolt holes 60 which in turn receive the boltsthat hold the face plate in position.

Turning to the bearing support for the auger from the spider arms, itwill be noted in Figure 20 that the sleeve carries at either endretaining rings through the countersunk screws 62 mounted in the end ofthe sleeve 50. The inner faces of the sleeve 50 are tapered at 63 toreceive a V- shaped packing ring 64, the other side of which fits on thetapered surface 65 of a steel ring 66 turning with the shaft and mountedthereon by means of a key 67 loosely mounted in a key way 68 in a shaft,one end of which open as at 69 adjacent the portion 70 of the shaftwhich is of lesser diameter than the portion 71, permitting of themoving of the spider and adjacent mechanism in carrying the steel sleeveand key end of the shaft through one end of the auger casing. Betweenthe inner wall of the bearing sleeve 50 and the stee sleeve 66 is abronze bushing 72. This bushing has oil passages 73 cut away tocommunicate with the oil passageway 53. It will be noted. that thealternate arms for the passageways 73 communicating therewith aredirected in opposite directions in order to insure an equal distributionof the lubricant. This bronze bushing 72 is held in position by a setscrew 74: carried by the bearing sleeve 50. 1

At the outer end of the arm 51 it will be observed that the casing ofthe auger marked 29 is provided an aperture 75 which has a V-shapedchannel of eater diameter than the main aperture marked 76. In the endof the arm 51 is threaded a brass tubular member 77 adapted tocommunicate with the pipe 53. The upper end of this brass tubular memberis enlarged as at 7 8 and carries grease cup 56. After it has beeninserted in the end of the arm Babbitt metal is poured into the space 76andflows into the enlarged tapered portion 75, forming a shoulder. Thusa tight fit is made. The parts 77 and 78 are made of brass to preventrusting.

Referring to Figure 8, for the marine bearing shown, designated 81, mayhave sutoperating handle 82 on a shaft 83 which against which the feet52 of the spider arms stit uted in Figure 1, aplain ring hearingsuch asshown in connection with the other bearings in Figure 8 when the Timkenroller bearing 18 is employed, but if the Timken roller bearing is notemployed, then the marine thrust bearing 81 is employed.

In operatingthe machine, we provide an passes beneath the auger casingwhere it is connected to a link 84. which'is connected in turn to theclutch 85 in any desired manner. This is not an essential portion of ourinvention, but'we describe it in order to make a complete disclosure ofan operating mechanism.

Turning to the auger casing once more with special reference to thedetachable liners in the casing, it will be observed that the casing isprovided with a shoulder 86 abut. The other edges ofthe spider arms areengaged by the edges of the tapering liner members 87, which are in turnengaged on the other side by the secondaryliner 88 which acts as asupport for the primary liner sections 89, 90 and 9-1. These liners areheld in position by the face plate whichisprovided with a plurality ofscrews 92 which engage with the liners to hold them in position. Theauger 31 is keyed on the shaft in any desired fashion, and is detachablymaintained on the shaft by the screw 93.

It will be noted that adjacent to the supporting bearing that the pugmill knives designated 94 have dual wings making them approximatelytwice the size of the ordinary pug mill knife and they are located at adifferent angle to the main axis of the shaft, increasing the effectupon the material passing through the machine, thus insuring that itshall be. forced through the auger and insuring that the back pressureon the material will not cause it to eddy 0r slush at this point Withoutmovement Which is a tendency which has to be. overcome by some such 1means as we have provided.

Having thus fully described our invention, what. we claim as new anddesire to secure by Letters Patent, is

1. In a combined pug mill and auger, a

support, a pug mill tub, an anger casing, pug mill blades on a mainshaft, a main shaft, an auger on said main shaft working in the augercasing and said pug mill blades adjacent the inner end of the auger setat a greater angle than the removing blades to increase the impetuscommonto the pug mill and in the auger at the point where the specialblades are located.

2. In a combined pug mill and auger, a support, a pug mill tub, an augercasing, pug mill blades on a main shaft, a main shaft, an auger on saidmain shaft working in the auger casing and said pug mill blades adjacentthe inner end of the auger set at an angle to increase the impetuscommon to the pug mill and in the auger at the point where the bladesare located, said blades being set at an angle different than that ofthe remainder of the pug mill blades.

3. In combination, a support, a shaft mounted on said support, actuatingmechanism for actuating said shaft, a pug mill top in which said shaftrotates a portion of its length, an anger casing in which said shaftrotates another portion of its length, pug mill blades mounted on saidshaft in said tub, an auger mounted on said shaft in the auger casing,and special pug mill blades of larger size and set at a more acute angleto the shaft than the other blades adjacent said auger for increasingthe power applied to the material at the point where it enters the augerto force it through the auger and around the support for the auger shaftadjacent the auger, and a spider supportfor the auger shaft adjacent theauger.

4. In combination, a support, a shaft mounted on said support, actuatingmechanism for actuating said shaft, a pug mill top in which said shaftrotates a portion of its length, an auger casing in which said shaftrotates another portion of its length, pug

.mill blades mounted on said shaft in said tub, an auger mounted on saidshaft in the auger casing, special pug mill blades of larger size andset at a more acute angle to the shaft than the other blades adjacentsaid auger for increasing the power applied to the material at the pointwhere it enters the auger to force it through the auger and by thesupport for the auger shaft adjacent the auger, and a spider support forthe auger shaft adjacent the auger, said special blades being set at adifferent angle to the remainder 0f the blades on the shaft.

5. In combination, a support, a shaft mounted on said support, actuatingmechanism for actuating said shaft, a pug mill top in which said shaftrotates a portion of its length, an auger casing in which said shaftrotates another portion of its length, pug mill blades mounted on saidshaft in said tub, an anger mounted on said shaft in the auger casing,special pug mill blades adjacent said auger for increasing the powerapplied to the material at the point where it enters the auger to forceit through the auger and by the support for the auger shaft adjacent theauger, and a spider support for the auger shaft adjacent the auger, saidspecial blades being set at a different angle to the remainder of theblades on the shaft, and of approxii'nately double the area of the otherblades.

In testimony whereof, we affix our signatures.

ROY H. MoELROY. ALBERT G. LANGENKAMP. JOSEPH D. CITE.

